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Storage of non-dormant seeds of Fraxinus angustifolia Vahl 总被引:1,自引:0,他引:1
The effects of drying and storage on the quality of Fraxinus angustifolia non-dormant seeds have been investigated. Mature seeds subjected to a 2-week warm stratification (20 °C) followed by a 2-week cold stratification (3 °C), were exposed to a gentle air stream at room temperature to dry them to 9.5% moisture content. After 4, 8 and 12 months of storage at –3 °C, in hermetically sealed containers, germination tests were conducted in darkness at 30/20 °C and 25/5 °C to evaluate possible changes in seed quality. The results obtained suggest the feasibility of drying non-dormant seeds. In fact, though causing a slight decrease in seed quality, such a process enables storage of ready to sow seeds for at least 12 months without any further loss. The temperature regime of 30/20 °C, prescribed by the International Seed Testing Association (ISTA), was found to be suboptimal for the particular conditions tested in this trial, the 25/5 °C cycle being more stimulating for germination. 相似文献
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